320419420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{843209}}^1$

素因数の和:843237

約数の個数: 24

約数和(自身を含む): 708296400

約数和(自身を除く): 387876980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 843209, 1686418, 3372836, 4216045, 8432090, 16020971, 16864180, 32041942, 64083884, 80104855, 160209710, 320419420]

約数ペア:

[(1, 320419420), (2, 160209710), (4, 80104855), (5, 64083884), (10, 32041942), (19, 16864180), (20, 16020971), (38, 8432090), (76, 4216045), (95, 3372836), (190, 1686418), (380, 843209)]